JPH11212030A - Spectacle frame - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a spectacle frame, which makes structure simple and stable and is provided with a hinge mechanism for easily attaching a decorative member, by turnably fitting and inserting the respective forked top ends of a temple on the side of a spectacle lens into a hole opened at the side face part on the side of the lens. SOLUTION: On a lens 6, non-through holes 7 are opened at two positions. A forked fitting part 8 is provided at the terminal part of a temple 4. The hinge mechanism is constituted by fitting this fitting part 8 into the non-through hole 7. The forked fitting part 8 is spread in the direction of arrow (1) and fitted to the non-through hole 7 (2). When a material having elasticity is used, the mounting of the forked fitting part 8 of the temple 4 is stabilized as well and the temple 4 can be freely detached as well. When the temple 4 is opened in a state of mounting the temple 4 on the lens 6 (2), the contact part 9 is contacted with one part of the lens 6 and functioned as a stopper. Corresponding to how this contact part 9 is bent, the opening degree corresponding to personal difference can be adjusted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an eyeglass frame having a special hinge mechanism.

[0002]

2. Description of the Related Art FIG. 1 shows a hinge of an example of conventional glasses. The structure of the spectacles is such that a hinge 3, a temple 4, a yoro 2, which is a connecting portion between the frame 1 and the temple 4, and a yoro 2 and the temple 4 are joined to the end of the front frame 1 supporting the lens by the hinge 3. And is usually fastened by screws 5. There are several types of hinges. In this example, the hinges are joined by "chi hinges". In the case of the intelligent hinge, a part (a part having a hole into which a screw is fitted) called a piece (piece) attached to the temple 4 and the yoke 2 is fitted, and the screw 4 (a hinge screw) is attached thereto.
And Yoroy 2 are joined. Since the joint is the hinge 3, the temple 4 can be folded.

[0003] Although shown here is an example of a bifurcated yoroi, there are many cases where a non-bifurcated one is used. The joining of the spectacle front frame 1 with the yoke 2 is usually performed by brazing.

[0004]

A conventional eyeglass frame (eyeglass frame) has a structure in which a hinge is attached to the temple and the temple as a temple opening / closing mechanism, and the frame is stopped by tightening a screw to connect the two. . However, such a structure using a hinge has the following problems. (1) The screws that stop the connecting pieces may become loose. (2) The opening and closing of the temple may be loose. (3) The hinge may be loose. (4) The temple may not be able to open and close smoothly.

[0005] In order to solve such problems relating to hinges, spectacles having a special hinge mechanism have been proposed. There are many examples of a special hinge mechanism. For example, in Japanese Patent No. 3008722 “Stemless hinge mechanism of eyeglass temple”, a temple having a ring-shaped end that rotates while being sandwiched between opposing convex portions. Have been proposed. Japanese Patent Application Laid-Open No. 1-172021 discloses an eyeglass frame provided with another hinge mechanism.

Various other hinge mechanisms have been proposed, most of which are formed by bending a metal wire. These hinge mechanisms are generally lighter in weight than ordinary hinges, but, on the other hand, have problems such as complicated structures and lack of structural stability. The problem to be solved by the present invention is to provide a spectacle frame having a novel hinge mechanism that has a simple structure, is stable, and is easy to attach a decorative member. Another object of the present invention is to provide eyeglasses having a structure in which a temple can be easily replaced.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is directed to a spectacle frame provided with a mechanism that allows a temple of spectacles to be freely folded. Is rotatably fitted into a hole formed in the side surface of the lens.

[0008] Further, it is possible to provide a structure having an opening preventing portion for preventing the temple from opening when a part of the temple comes in contact with a part of the lens. The holes formed in the lens side surface may be a pair of non-through holes on the same axis. The shape of the lens may be such that a protrusion is provided on each temple side of the left and right lenses.

In temples for spectacles, a mechanism for preventing the temple from opening beyond a certain angle is required. For this reason, in the present invention, a part of the temple that fits into the non-through hole is bent, and when the temple is opened, the bent temple part hits a part of the lens so that the lens cannot be further opened.

In order to smoothly open and close the temple and to enable stable mounting, a pair of non-through holes provided in the lens are formed so as to be coaxial. Further, the temple is designed in a state close to a U-shape so that a stable state (a state in which the temple is hard to be detached) can be maintained when the temple is fitted in the non-through hole.

Further, by providing a buffer resin layer on the rotation surface of each of the forked ends of the temple on the spectacle lens side and the hole formed in the side surface of the lens, smoother rotation can be obtained. As the resin to be used, a resin having lubricity is appropriate, and a silicon resin or the like is used. The resin may be provided on the end surface of the temple and fitted therein, or may be fitted with a buffer layer provided inside a hole formed in the lens.

[0012]

Embodiments of the present invention will be described with reference to the drawings. FIG. 2 is an explanatory diagram showing an example of the hinge structure of the eyeglass frame of the present invention. Two non-through holes 7 are opened in the lens 6. On the other hand, a forked fitting portion 8 is provided at the end of the temple 4. The hinge mechanism is formed by fitting the fitting portion 8 into the non-through hole 7. As shown in FIG. 2A, the forked fitting portion 8 is expanded in the direction of the arrow and fitted into the non-through hole 7. If the bifurcated fitting part 8 of the temple is made of a material having elasticity, the attachment is stable and the temple can be freely removed.

FIG. 2B shows a state in which the temple 4 is mounted on the lens 6. At this time, when the temple 4 is opened, the contact portion 9 comes into contact with a part of the lens so as to have an opening preventing function. The degree of opening of the contact portion 9 can be adjusted in accordance with the degree of bending depending on individual differences.

FIG. 2 shows an example in which the hinge mechanism of the present invention is applied to a lens having a normal shape. FIG. 3 shows an example in which one end of the lens on the temple side is projected. A non-through hole 7 is formed in the projecting portion 10 of the lens 6, and the fitting portion 8 of the temple 4 is fitted therein. At this time, as in the example of FIG. 2, the contact portion 9 of the temple comes into contact with the protrusion 10 of the lens, thereby acting as an opening stopper. This opening is adjusted depending on the degree of bending of the contact portion 9 so as to have an opening of about 90 degrees as shown in FIG. of course,
It is also possible to keep the degree of bending of the contact portion 9 constant and adjust the degree of opening at the branch portion of the temple 4.

[0015] A pair of non-through holes provided in the lens need to be on the same axis, but as the most stable form, it is usually appropriate to open in a substantially vertical direction when wearing spectacles. For example, FIG. 5 shows an example in which a non-penetration is provided for a lens 6 having a normal shape, and when the direction in which the lens 6 is erected (the direction along the surface of the lens) is vertical, A non-through hole 7 is opened near the vertical direction. In the example shown in the figure, the pair of non-through holes 7 are arranged on the same axis, so that the rotation of the temple can be made smooth and stable mounting is possible.

[0016] The rotation surface is coated with a lubricating resin, or a buffer resin layer is formed by interposing a lubricating resin member, so that the glasses can be opened and closed smoothly, and the opening and closing abrasion can be extended for a long time. Can last.
As the resin forming the buffer resin layer, a lubricating resin such as a silicon resin is desirable. FIG. 6 shows an example in which the temple end 8 is coated with a buffer resin layer 11. FIG. 7 shows an example in which a buffer resin layer 12 is formed on the inner surface of a hole provided in a lens.

[0017]

By using the hinge mechanism of the present invention, a metal material having poor brazing properties, such as a superelastic alloy or a shape memory alloy, can be used as it is. Since it is a simple form that does not use the front frame of the spectacles, the yoke, the hinges, the screws, etc., there is no place to braze the spectacle frames, the number of parts used is small, and the work process can be saved. Therefore, the eyeglass frame can be manufactured at low cost and is very light. Further, there is an effect that a free temple shape is possible without being limited to the shape of the lens, and the temple can be easily replaced.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a structure of eyeglasses using a hinge according to the related art.

FIG. 2 is an explanatory view showing an example of a hinge mechanism of the present invention.

FIG. 3 is an explanatory view showing an example of a hinge mechanism of the present invention.

FIG. 4 is an explanatory view showing an example of a hinge mechanism of the present invention.

FIG. 5 is an explanatory diagram of an example of a non-through hole of the lens of the present invention.

FIG. 6 is an explanatory view of a temple end provided with a buffer layer in the eyeglass frame of the present invention.

FIG. 7 is an explanatory view of a hole of a lens provided with a buffer layer in the spectacle frame of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Eyeglass front frame (frame) 2 Yoroi 3 Hinge 4 Temple 5 Screw 6 Lens 7 Non-through hole provided in lens 8 Temple forked fitting part 9 Contact part 10 Lens protrusion 11 Buffer resin layer 12 Buffer resin layer

Claims (6)

[Claims] 1. A spectacle frame having a mechanism that allows a temple of spectacles to be freely folded, wherein each of the forked ends of the temple on the spectacle lens side is rotatably fitted into a hole formed in a side surface of the lens. An eyeglass frame characterized by being inserted. 2. A spectacle frame provided with a mechanism that allows a temple of spectacles to be freely folded, wherein a pair of bifurcated ends on the spectacle lens side of the temple are provided on a side surface of the lens. An eyeglass frame, which is rotatably fitted into a through hole. 3. A spectacle frame provided with a mechanism that allows a temple of spectacles to be freely folded, wherein left and right lenses have a shape provided with a projection on each temple side, and are divided into two forks on the spectacle lens side of the temple. An eyeglass frame, wherein each end is rotatably fitted into a hole formed in a lens side surface of the projection. 4. A spectacle frame provided with a mechanism that allows a temple of spectacles to be freely folded, wherein left and right lenses have a shape provided with a protrusion on each temple side, and are divided into two forks on the spectacle lens side of the temple. An eyeglass frame, wherein each end portion is rotatably inserted into a pair of non-through holes on the same axis formed in a lens side surface portion of the projection. 5. A buffer resin layer is provided on a rotation surface of each of the bifurcated distal ends of the temple on the spectacle lens side and a hole formed in the side surface of the lens.
5. The eyeglass frame according to any one of items 1 to 4. 6. An eyeglass frame according to claim 5, wherein said buffer resin layer is a silicon-based resin layer.